<template>
    <div class="tags">
        <el-tag
        :key="tag.name"
        v-for="(tag, index) in tags"
        :closable="tag.name !== 'home'"
        :disable-transitions="false"
        :effect="$route.name === tag.name ? 'dark' : 'plain'"
        @click="changeMenu(tag)"
        @close="handleClose(tag, index)"
        >
      {{ tag.label }}
    </el-tag>
    </div>
</template>

<script>
import {useRouter, useRoute} from 'vue-router'
import {useStore} from 'vuex'
export default {
    setup() {
        const store = useStore();
        const router = useRouter();
        const route = useRoute();
        const tags = store.state.tabsList;
        const changeMenu = (item) =>{
            router.push({name:item.name})
        };
        const handleClose = (tag, index) => {
            let length = tags.length - 1;
            // 处理vuex中的tabslist
            store.commit("closeTab", tag);
            // 做第一个判断
            if (tag.name !== route.name) {
                return;
            }

            if (index === length) {
                router.push({
                    name: tags[index - 1].name,
                });
            } else {
                router.push({
                    name: tags[index].name,
                });
            }
        };
        return{
            tags,
            changeMenu,
            handleClose,
        };
    },
}
</script>

<style scoped>
/* 给tags标签设置属性 */
.tags {
  padding: 20px;
  width: 100%;
  .el-tag {
    margin-right: 15px;
    cursor: pointer;
  }
}
</style>